Germán Antonio Llanes (born Cañada Seca, 27 May 1968) is former Argentine rugby union player.
He played as a lock.
Llanes played for La Plata Rugby Club, from 1986/87 to 1994/95, Mirano Rugby 1957, in Italy, in 1995/96, Bath Rugby, in England, for 1997/98, Stade Rochelais, from 1999/2000 to 2001/2002, CA Bègles-Bordeaux, in 2002/03, Stade Rochelais, once again, for 2003/04, and Stade Bordelais, in 2005/06, where he finished his career, aged 38 years old.Llanes had 42 caps for Argentina, from 1990 to 2000, scoring 1 try, 5 points on aggregate.
He was called for the 1991 Rugby World Cup, playing in two matches, and for the 1995 Rugby World Cup, playing in three matches.